ULTEM CRS5201R – 20% Glass Reinforced Chemical Resistant PEI Resin with Internal Mold Release

ULTEM Resin CRS5201R is a 20% glass fiber reinforced, standard flow polyetherimide (PEI) copolymer manufactured by SABIC. As an authorized distributor and trader, we supply genuine SABIC materials with full traceability.

This grade is specifically engineered for applications requiring superior chemical resistance to strong acids, bases, aromatics, and ketones combined with the enhanced stiffness provided by 20% glass fiber reinforcement. Compared to CRS5201, CRS5201R incorporates internal mold release agents for improved demolding and processing efficiency, making it particularly suitable for complex mold geometries and thin-wall parts. It is a PFAS-free, amorphous, flame retardant PEI copolymer ideal for harsh chemical environments where standard engineering plastics may degrade.

Key attributes include:

• 20% Glass Fiber Reinforcement – Provides high stiffness, strength, and dimensional stability; tensile modulus of 6,890 MPa

• Internal Mold Release – Improves demolding efficiency, reduces cycle times, and simplifies complex mold designs

• Superior Chemical Resistance – Formulated to withstand strong acids, bases, aromatics, and ketones; ideal alternative to polysulfone in chemically aggressive environments

• High Heat Resistance – Glass transition temperature (Tg) of 225°C; UL RTI of 105°C

• Inherent Flame Retardancy – UL94 V-0 (1.5mm) and 5VA (1.5mm) ratings; ECO conforming

• High Stiffness & Strength – Tensile modulus of 6,890 MPa; tensile strength of 131 MPa

• Excellent Dimensional Stability – Low shrinkage and low creep sensitivity

• Low Smoke & Toxicity – Inherently low smoke and toxicity; suitable for aerospace and mass transit applications

• Hydrolytic Stability – Good resistance to moisture and hydrolysis

• Good Metal Adhesion – Suitable for applications requiring metal bonding

• ECO Conforming – Meets environmental compliance standards

• PFAS-Free – No PFAS intentionally added during manufacturing

• Versatile Processing – Suitable for injection molding

Key Features of ULTEM CRS5201R

• 20% Glass Fiber Reinforced – Provides high stiffness, strength, and dimensional stability; significantly improved rigidity compared to unreinforced grades

• Internal Mold Release – Formulated with internal mold release agents for improved demolding and processing efficiency, reducing cycle times and simplifying complex mold designs

• Superior Chemical Resistance – Specifically formulated to resist strong acids, bases, aromatics, and ketones; an ideal alternative to polysulfone in chemically aggressive environments

• High Heat Resistance – Glass transition temperature of 225°C; UL RTI of 105°C

• Inherent Flame Retardancy – UL94 V-0 (1.5mm) and 5VA (1.5mm) ratings; UL Yellow Card E121562-103873032

• High Mechanical Strength – Tensile modulus of 6,890 MPa; tensile strength of 131 MPa; elongation at break of 5.0%

• Good Impact Resistance – Notched Izod impact of 74 J/m

• Excellent Dimensional Stability – Low mold shrinkage; low creep sensitivity; good dimensional stability across a broad temperature range

• Low Smoke & Low Toxicity – Inherently low smoke and toxicity; suitable for aerospace, mass transit, and defense applications

• Good Metal Adhesion – Suitable for applications requiring metal bonding

• Amorphous Structure – Provides excellent dimensional stability across a broad temperature range

• ECO Conforming – Meets environmental compliance standards

• PFAS-Free – No PFAS intentionally added during manufacturing

• Versatile Processing – Suitable for injection molding

CRS5201 vs CRS5201R Comparison

Typical Applications for ULTEM CRS5201R

Typical Properties

Important Notes on Typical Data:

• Values listed are typical and sourced from SABIC official data sheets. They do not constitute binding product specification.

• Batch-to-batch deviations may exist. For critical applications, validate performance with batch-specific COA certificate.

• Final performance depends on processing conditions, mold design, and part geometry.

• SABIC official TDS shall serve as definitive technical reference. Request the latest official TDS from our sales team.

Processing Guidelines (Injection Molding)

Critical Processing Warnings:

• Drying: ULTEM CRS5201R is hygroscopic and must be dried to <0.02% moisture before processing. Dry at 150°C for 4-6 hours.

• Internal Mold Release: This grade contains internal mold release agents for improved demolding and processing efficiency. This feature is particularly beneficial for complex mold geometries and thin-wall parts.

• Melt Temperature: Recommended melt temperature range is 365-390°C. Avoid excessive residence times to prevent thermal degradation.

• Mold Temperature: Higher mold temperatures (135-165°C) improve flow and reduce residual stress.

• Chemical Resistance: This grade is formulated for enhanced chemical resistance to strong acids, bases, aromatics, and ketones. Verify compatibility with specific chemicals in your application.

• PFAS-Free: This product does not contain PFAS intentionally added during manufacturing.

• Gate Design: Use large gates and runners to minimize flow resistance and reduce molded-in stress.

• Regrind: Regrind can be used up to 20-25% with virgin material, provided it is clean and properly dried.

CRS5000 Series Comparison

Related Products

• Explore PEI / Polyetherimide – Browse all ULTEM PEI resin options

• Explore Engineering Plastics – Browse all engineering plastic materials

• About Our Company – Learn more about our supply capabilities and quality assurance

Technical Documents

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We reply within one working business day. Please clearly state product (ULTEM CRS5201R) and document type you require.

FAQ

Q1: What is ULTEM CRS5201R and what is it used for?
A: ULTEM CRS5201R is a 20% glass fiber reinforced polyetherimide (PEI) copolymer manufactured by SABIC with internal mold release and superior chemical resistance to strong acids, bases, aromatics, and ketones. It is widely used in aerospace interiors, defense, mass transportation (heavy truck, rail, bus), automotive under the hood, chemical processing, industrial, and energy applications.

Q2: What is the difference between ULTEM CRS5201 and CRS5201R?
A: CRS5201R includes internal mold release while CRS5201 does not. This improves demolding efficiency and reduces cycle times. Both grades contain 20% glass fiber reinforcement, share the same enhanced chemical resistance to strong acids, bases, aromatics, and ketones, and both have a Tg of 225°C. CRS5201R has a slightly higher MFR (3.1 vs 2.3 g/10min).

Q3: What is the glass transition temperature of ULTEM CRS5201R?
A: The glass transition temperature (Tg) is 225°C.

Q4: What is the density of ULTEM CRS5201R?
A: The density is 1.42 g/cm³.

Q5: Is ULTEM CRS5201R flame retardant?
A: Yes. ULTEM CRS5201R is inherently flame retardant with UL94 V-0 (1.5mm) and 5VA (1.5mm) ratings.

Q6: Is ULTEM CRS5201R PFAS-free?
A: Yes. ULTEM CRS5201R has no PFAS intentionally added during manufacturing and is ECO conforming.

Q7: What is the melt flow rate of ULTEM CRS5201R?
A: The Melt Flow Rate (MFR) is 3.1 g/10min at 337°C, 6.6kg.

Q8: What is the tensile strength of ULTEM CRS5201R?
A: Tensile strength at break is 131 MPa.

Q9: What is the tensile modulus of ULTEM CRS5201R?
A: The tensile modulus is 6,890 MPa.

Q10: What is the glass fiber content of ULTEM CRS5201R?
A: ULTEM CRS5201R contains 20% glass fiber reinforcement.

Q11: What processing methods can be used for ULTEM CRS5201R?
A: ULTEM CRS5201R is processed by injection molding.

Q12: What is the UL RTI of ULTEM CRS5201R?
A: The UL Relative Thermal Index (Elec/Imp/Str) is 105 / 105 / 105 °C.

Q13: What is the recommended drying condition for ULTEM CRS5201R?
A: Dry at 150°C for 4-6 hours.

Q14: What is the melt temperature for injection molding ULTEM CRS5201R?
A: Recommended melt temperature is 365-390°C.

Q15: What is the lead time for orders?
A: Regular orders ship within 7-10 working days after payment confirmation. Large-volume or urgent orders can be negotiated separately.

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Sample Policy:

• Samples are for laboratory validation tests only, not for production use.

• Buyer bears international sample-shipping freight.

• If bulk-product performance deviates from sample reference, SABIC official TDS serves as the authoritative benchmark.

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Disclaimer

DISCLAIMER: All technical data is referenced from original SABIC typical values for ULTEM CRS5201R. Our company acts as authorized distributor/trader rather than original manufacturer. Final performance depends on processing conditions, mold design, and part geometry. Buyers shall independently validate product suitability for individual applications. Our firm bears no liability for product failure caused by improper processing or improper usage. Always reference the latest SABIC official TDS of ULTEM CRS5201R as the definitive specification.